Angiography

Angiography is a diagnostic procedure where a small tube [catheter] is inserted into a blood vessel through a pinhole puncture in the skin usually in the thigh. The tube is then navigated under imaging guidance to the blood vessel that has to be studied. The procedure is done under local anesthesia and the patient is generally discharged the same day.
Patients with impaired kidney function, especially those who also have diabetes, may have further deterioration in the kidney function with iodinated contrast. In these cases carbon dioxide angiography is a safe option.However, CO2 gas cannot be used to study the blood vessels of the chest and the brain. In these cases MR angiography may be a better choice.

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• angiography
• DSA